Holding and operating means for ventilator louvers and the like



May 6, 1924. 1,493,023

W. E. COAKLEY HOLDING AND OPERATING MEANS FOR VENTILATOR LOUVERS AND THE LIKE Filed March e. 1920 Patented May 6, 1924.

UNITED STATES;

WILLIAM-E. CQAKIQEY, OFCLEVELAND, oII o, ASSIGNOR Toma-tam} Boi & nLownR COMPANY, or CLEVELAND, OHIO, A CORPORATION OF oIIIo.

HOLDING AND OPERATING MEANs Eon VENTILKTOR no uvfins AND THE LIKE.

, Application filed To all whom it may concern Be it known that 1, WILLIAM E. Corinna r,

a citizen of the United States, residing-at Cleveland in the county of Ouyahoga an State-0f ()hio, have invented a. certain ney v and useful Improvement in Holding and Operating Means for. Ventilator. 'Louver's and the like, of which the following is a, full, clear,.and exact description, reference 1 being had to the accompanying drawings This invention relates to an automatic holding and operating device; peculiarly suitable for use in connection withthelouve r, of ventilators for operating said louver and retaining same in open position, 't hough panying drawing as associated with a. yentilator. Fig. 1 is a substantially centralyerti cal section through a ventilator equipped with one form of my improved "operating and holding devices for maintaining the lou'vers of the ventilatingvdevioe .open

position; and Fig. 2 is a similar view showing a modification of such device. j v The ventilator wherewitliv I have shown my holding device associated is of thecowl type and comprises a base ring ,1 having. a bearing plate 2' supported centrallyof andabove it, through braces3. The cowl, designated at 5 is supported througha bearing plate 6 that is sustained centrally of the cowl by braces 7 and which surmounts the former bearing plate 2, suitable anti-friction elements (not shown) beinginterposed between the two plates. -The plates are maintained in proper relation to each other and against separation by a tube 9 which depends from the upper plate through central aperture of the lower plate and has a nut 10 applied to it beneath the lower plate.

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i A jof louvers 12arepivoted at their upp'erpedges wit 11 an open side 13 of the cowlfandare adapted to ,drop'by gravity to clos ng position; n amanner readily underfstoodf Th e free edges of .tlie louve'rs are amt-ace; 'b'y 1i k- 5 so that theymay be Il lo ved In unison by a common operating means.

Re erring a Fi i'vvh'erein 1 have shown one Loperating and retaining means, '17 rep esents an Inclined plate which is welded bracket 17., fastened to the top bearing platfle'fi. This plate serves as a track for the "roller '18 which is pivoted between a pair of bent arms 19 An arm 20 is pivoted at one end; between the lower ends of I arms, attheiotlierendto ap'rojection 21 on the 'nner sid'efof onefof the louvers 12.

T e-upper aw: re 2 pi a y nectjed to theuppe'r end; of the bent arms 19 which is di'sp'o's ed' directly above the tube 9 and isai'ci rdd depends" through the tube to I n lilie basefriiig l. The lower end 'oflthe jrod 2' is provided with a swivel 23, to w 24 whichf de r as within "the building where the ventilator is:v located "so as. to"

louvers. P'ivotallysupported "by a bracket, 25, which fastened to the horizontal top 26 o'f thecowl, is" a holding device 5 is ;ess ntia11 a curved armpro- 'vidfii W i series, "ofnqtchfi '29 adapted to receive the I WL dfiQJ f/th :tbpr cur & Assuming,,thatjtheventilator is in a closed positionas shdwn'by tli dotted lines, the op: eration ..wil,1, be, as follows .Member 24 is" pulled downwardly causing the roller 18 to move downwardly aind outwardly on inclined plate 17 thereby forcirig arm QOou't- Wardly to openthe louvers. The holding arm, 27 .is, 'deflectedo itwardly by the top louver engagingthe upper side of the rounded, toe. portion 28 which movement permits the louver to swing upwardly and clear the swinging arm 27. On the return swing of said arm the edge of,,the jlouver is engaged by on elof the notches "29by relaxing the pull on member '22, the particular notch to be engaged, depending upon the length of time befor e yrelazgin'g the. pull on said chain.

When closing. the ,Ventilator ajpullon me 1n-' reach, for q eraua the undedtoe 'portibn 2.8 and a ber 24 will disengagethe edge of the louver retaining means, 31 represents a bracket attached to one of the braces 7 A supporting arm 32 is pivotally fastened thereto as indicated at 33. A bent arm 34, which is pivoted to the top of the supporting arm 32,

has the outer end thereof pivotally connect-' ed to the projection 21 onone of the'louvers, and at the inner end thereof the vertical operating rod 22 is pivotally fastened thereto in a manner similar to that previously described. A retaining device 35, which 18 provided with a series of holding notches 36 and a deflecting notch 37, is pivotally connected to the bent arm 34 as indicated at These notches are adaptedto engage a pm 39 which projects laterally from the supporting arm 32 andhold the louvers open by engagement of one of said notches therewith.

Assuming that the ventilator is in the closed position as shownby the full lines, the operation will beas follows: Member 24 is pulled downwardly causing the bent arm 34 to rock about the pivotal connection at the top of supporting arm 32 and partially raise the louvers- As the louvers open to maximum position (shown by the dotted lines) supporting arm 32 will swlng about prvot 33 to compensate for the increase in radius.

Meanwhile, the retaining device 35 has been sliding freely over pin 39 and by relaxing the pull on member 24 the pin 39 Wlll be engaged in one of the notches 36 to hold the louvers and operating mechanism 1n a fixed position. In order to lower the louvers, the flexible member 24" is pulled downwardly until pin 39 engages the deflecting notch 37. If the pull on said flexible member 1s now suddenly relaxed the pin 39 will strike the toe 40 of notch 37 and deflect the retaining device 35 outwardly and thereby permit the louvers to drop.

The purpose of swivel23 is to prevent the flexible member 24 from becoming twisted as the ventilator rotates about its axis to meet.

varying wind directions. v

In each of theabove devices I preferably provide theretaining device with a'fusible portion. so that in case of fire the excessive heat will melt said fusible portion and cause the ventilator to close automatically. In Fig. 1 I have indicated the fusible portion at 42 and in Fig. 2, 43 represents such portion.

Having thus described myinvention, what being disposed in operative relation to said pivoted member whereby the edge of said pivoted member may engage said notches and means for operating said pivoted member, said arm being tripped into and out of engagement with said pivoted member solely by the movement of said member.

' 2. In a device of the class described, the combination with a pivoted member adapted to open and close an opening, of a curved arm pivoted adjacent said pivoted member and adapted to contact therewith when said member is in the closed position, a'plurality of notches formed in said arm and adapted to receive the edge of said member when in the open position-and means for operating said pivoted member, said member being adapted to deflect said arm when moved to open position, and said arm being adapted to swing across and engage the edge of said member to hold said member in the open position.

3. In a device of the class described, the combination with a cowl, of a pivoted member adapted to open and close an opening in said cowl, a curved arm depending from said cowl and adapted to contact with said pivoted member when in the closed position, means carried by said arm for retaining said pivoted member in the open position and means for operating said pivoted member, said member being adapted to deflect said arm when moved to open position, and said arm being adapted to swing across and engage the edge of said member to hold said member in the open position.

4. In a device of the class described, the combination with a cowl, of a pivoted member adapted to open and close an opening in said cowl, a curved arm pivotally fastened to the top of said cowl and adapted to contact with said pivoted member when in the closed position, a plurality of notches in said arm for retaining said member in the open position, and means for operating said pivoted member, said arm being tripped into and out of engagement. with said pivoted member solely bythe movement of said member.

5. In a device of the class described, the combination with a cowl, of a pivoted member adapted to open and close an opening in said cowl, means for retaining said member in the open position, an inclined track positioned within said cowl, a roller adapted to traverse said track, an arm fastened to said roller, a second arm connecting said pivoted member and said first mentioned arm and means for moving said roller along said track to operate said pivoted member.

6. In a device of the class described, the combination with a cowl, of a pivoted member adapted to open and close an opening in said cowl, an arm depending from said cowl adjacent said pivoted member, said arm being pivoted to said cowl and deflected outher, the movement of said pivoted member wardly and inwardly toward said pivoted being adapted to operate said arm to hold member, said arm being provided with a or release said member. 10 plurality of notches and the free end of said In testimony whereof, I hereunto aifix my 6 arm being adapted to contact with said pivsignature. oted member when in the closed position, and means for operating said pivoted mem- WILLIAM E. COAKLEY. 

